LTE-Advanced 표준의 주요 요구 사항 및 요소 기술 소개
Introduction on major requirements and component technologies for LTE-Advanced system
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본 논문에서는 현재 3GPP의 기술 논의의 중심이 되고 있는 LTE-Advanced 표준 기술에 대하여 살펴본다. LTE-Advanced 표준 기술은 차세대 이동통신 시스템의 국제 표준인 IMT-Advanced 표준 가운데 하나가 될 것이 확 실한 표준 기술이며 IMT-Advanced 표준에 대한 요구 사항과 더불어 3GPP에서 자체적으로 요구하고 있는 성능 향상 에 대한 요구 사항을 맞추기 위하여 여러 가지 성능 향상 기법들에 대한 연구가 이루어지고 있다. 본 논문에서는 IMT-Advanced 표준에 대한 요구 사항과 LTE-Advanced 표준에 대한 3GPP의 자체 요구 사항에 대하여 알아 본 후, 이러한 요구 사항들을 만족시키기 위해 어떤 기술 연구가 이루어지고 있는가에 대하여 논하기로 한다.
Abstract
For the past few years, standardization for LTE system has been successfully done and accordingly a lot of service providers are now preparing for earnest deployments of LTE system all around the world. As standardization for LTE system was coming to an end, there have been increasing demands for more advanced future communication system from various standpoints such as system throughput, packet delay, peak data rate, etc, which led to an introduction of new marketing terminology, so called IMT-Advanced system as defined by ITU-R. LTE-Advanced can be outlined as system now under study in 3GPP aiming toward to be coincident with IMT-Advanced system requirements. In this paper, we introduce the trends and status of the standardization activities for LTE-Advanced system, which is nowadays under the center and focus of 3GPP technical discussion. Even though there exist other strong rivalry technologies, LTE-Advanced system is widely perceived as the strongest candidate to become a major trend in the future market for next generation communication system. Therefore, a lot of performance enhancing techniques and component technologies have been proposed and investigated in 3GPP WGs in order to satisfy both IMT-Advanced system requirements and more stringent LTE-Advanced system requirements. Here, we will first look at what kinds of requirements LTE-Advanced system should satisfy in order to be ratified as IMT-Advanced system and then investigate what kinds of component technologies are now being studied in 3GPP WGs to meet these system requirements.
참고문헌 (61)
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